APA Citation

Schoenberg, I. E., & Maurer, J. (2012). Focus on grammar 1 (Third edition.). United States of America: Pearson.

Chicago Style Citation

Schoenberg, Irene E., and Jay Maurer. Focus On Grammar 1. Third edition. United States of America: Pearson, 2012.

MLA Citation

Schoenberg, Irene E., and Jay Maurer. Focus On Grammar 1. Third edition. United States of America: Pearson, 2012.

Warning: These citations may not always be 100% accurate.